A fan support arm with a base section configured to be coupled to a sidewall, a mount section configured to be coupled to a motor, and an arm section extending between the base section and the mount section. Wherein, the arm section has a profile that minimizes aerodynamic drag.

A residue management system for an agricultural vehicle includes: a straw hood defining a first rear opening and a second rear opening; a windrow chute held adjacent to the first rear opening; a spreader assembly held adjacent to the second rear opening; a conveyor held within the straw hood and defining a conveyor axis of rotation; and a selection door pivotably coupled to the straw hood and defining a pivot axis which is rearward and below the conveyor axis of rotation, the selection door being configured to switch between a first position in which material from the conveyor is directed toward the first rear opening and a second position in which material from the conveyor is directed toward the second rear opening.

A combine harvester includes a header assembly configured for collecting a crop, a threshing assembly coupled to the header assembly and configured for separating grains of the crop from material other than grain, and a cleaning assembly positioned in association with the threshing assembly and configured for separating the grains from chaff. The cleaning assembly includes a fan assembly having a fan housing with a fan output duct and a fan mounted to the fan housing, and one or more cleaning sieves. The fan assembly is configured to blow air across the one or more cleaning sieves via the fan output duct. The fan output duct includes at least one segmented air deflector.

A method for producing seed corn from the corn plants, for use in growing subsequent corn plants, includes measuring a moisture content of corn kernels on ears of the corn plants in the field and removing, by a combine harvester, the ears of corn from the corn plants when the moisture content satisfies a threshold moisture content. The method then includes separating the corn kernels from cobs of the ears of corn onboard the combine harvester and collecting the separated corn kernels for use as seed corn, whereby one or more subsequent corn plants can be grown from the collected corn kernels.

A combine harvester fan housing assembly may include a fan enclosure formed as a single unitary body out of a polymeric material. The fan enclosure may include a spiral duct spiraling about an axis, a first axial inlet opening sized to axially receive a fan therethrough and a second axial inlet opening and a discharge duct extending from the spiral duct. The combine harvester fan housing assembly may further include an inlet ring releasably mounted to the fan enclosure about the first axial opening, the Inlet ring projecting into the first axial opening by an extent so as to extend radially inward of blade ends of the fan.

An agricultural vehicle including a chassis, at least one rotor supported by the chassis and configured for threshing a crop material, at least one exterior side member supported by the chassis and including at least one outlet, and an air conduit located underneath the at least one rotor. The air conduit is configured for providing an airstream directed to the at least one exterior side member such that the airstream forces a material other than grain out through the at least one outlet.

A cleaning system for an agricultural harvester includes a first and second cleaning systems. A plurality of fans of a substantially similar diameter are fluidically coupled to the first and second cleaning systems. A controller generates and sends control signals to the fans to control the speeds of the fans.

A combine including a cutting wheel for harvesting crop, a separating system for threshing the harvested crop to separate grain from residue, at least one of a yield monitor or a loss monitor, a crop cleaning system including a cleaning fan, and a controller coupled to the at least one of the yield monitor or the loss monitor. The controller controls the crop cleaning system, and is configured to determine at least one of a throughput from the yield monitor, or a loss from the loss monitor, compare the determined throughput or loss to a respective throughput threshold or loss threshold, and control a speed of the cleaning fan based on the throughput or loss comparison.

A threshing and separating system includes a concave; a shaft defining an axis of rotation which is parallel to the concave and transverse to a longitudinal axis; and a plurality of slats rotated by the shaft and configured to move crop material against the concave. The slats have a helical shape winding around the axis of rotation. The slats include a first set of slats being predominantly on a left side of the shaft and having a left-handed helical shape, and a second set of slats being predominantly on a right side of the shaft and having a right-handed helical shape. At least one slat of said first set of slats is staggered relative to a closest slat of said second set of slats, such that a portion of a slat length of said at least one slat is overlapped with one or more adjacent slats of said second set.

A modular axle assembly for supporting wheels of an agricultural vehicle, such as a combine harvester, is disclosed. The modular axle assembly includes a first tube, a second tube parallel to the first tube, and at least one bracket connecting the first tube and the second tube.